Collision induced migration of adsorbates on surfaces

L. Romm; M. Asscher; Y. Zeiri

doi:10.1063/1.479038

Collision induced migration of adsorbates on surfaces

L. Romm^*, M. Asscher, Y. Zeiri

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

The collision induced migration (CIM) of adsorbates on surfaces is identified and discussed. The CIM process has been studied using molecular dynamics simulations of the Ar/N₂/Ru(001) system. The single adsorbed molecule can migrate over 150 angstroms following collisions at high energies and large angles of incidence. As coverage increases, inter-adsorbate collisions efficiently quench the migration distance. At high energies, the competing collision induced desorption becomes dominant, leaving behind only low energy adsorbates which migrate to relatively short distances.

Original language	English
Pages (from-to)	11023-11028
Number of pages	6
Journal	Journal of Chemical Physics
Volume	110
Issue number	22
DOIs	https://doi.org/10.1063/1.479038
State	Published - 8 Jun 1999

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abstract = "The collision induced migration (CIM) of adsorbates on surfaces is identified and discussed. The CIM process has been studied using molecular dynamics simulations of the Ar/N2/Ru(001) system. The single adsorbed molecule can migrate over 150 angstroms following collisions at high energies and large angles of incidence. As coverage increases, inter-adsorbate collisions efficiently quench the migration distance. At high energies, the competing collision induced desorption becomes dominant, leaving behind only low energy adsorbates which migrate to relatively short distances.",

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N2 - The collision induced migration (CIM) of adsorbates on surfaces is identified and discussed. The CIM process has been studied using molecular dynamics simulations of the Ar/N2/Ru(001) system. The single adsorbed molecule can migrate over 150 angstroms following collisions at high energies and large angles of incidence. As coverage increases, inter-adsorbate collisions efficiently quench the migration distance. At high energies, the competing collision induced desorption becomes dominant, leaving behind only low energy adsorbates which migrate to relatively short distances.

AB - The collision induced migration (CIM) of adsorbates on surfaces is identified and discussed. The CIM process has been studied using molecular dynamics simulations of the Ar/N2/Ru(001) system. The single adsorbed molecule can migrate over 150 angstroms following collisions at high energies and large angles of incidence. As coverage increases, inter-adsorbate collisions efficiently quench the migration distance. At high energies, the competing collision induced desorption becomes dominant, leaving behind only low energy adsorbates which migrate to relatively short distances.

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Collision induced migration of adsorbates on surfaces

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